From b09b50cbe46b939aae0f9778ab0fc602fe314fbb Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Fri, 12 May 2017 18:19:01 +0000
Subject: [PATCH] [APInt] Add an assert to check for divide by zero in udivrem.
 NFC

udiv and urem already had the same assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302931 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/APInt.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp
index a5ffcb2e96d..f4aa627d6ce 100644
--- a/lib/Support/APInt.cpp
+++ b/lib/Support/APInt.cpp
@@ -1662,6 +1662,7 @@ void APInt::udivrem(const APInt &LHS, const APInt &RHS,
   // Get some size facts about the dividend and divisor
   unsigned lhsWords = getNumWords(LHS.getActiveBits());
   unsigned rhsWords = getNumWords(RHS.getActiveBits());
+  assert(rhsWords && "Performing divrem operation by zero ???");
 
   // Check the degenerate cases
   if (lhsWords == 0) {